Photographic kit.



UNITED STATES i JOSEF MATHEIN,

PATENT OFFICE. v

OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO E. n H. T.

ANTHONY t CO., OF NEW YORK, N. Y.

PHoToeRAPl-llc KIT.

SPEGKFIGATION forming` part of Letters Patent No. 674.810, dated May 21,1901. Application led May 10, 19,00- Seral No. 16,146. (No model.)

To a/Z whom, it may con/cern:

Be it known that 1, JOSEF MATHEIN, a citizen of the United States, andaresident of New Haven, in the county of New Haven and State ofConnecticut, (having my post-office address at 21 Elliot street, in saidcity of New Haven,) have invented a new and useful Photographic Kit, ofwhich the following is a specification, reference being to theaccompanying drawings, in which- Figure l illustrates an elevation ofthe kit, showing a glass plate within it. Fig. 2 is a vertical sectionalview taken on the medial line of Fig. l. Fig. 3 is a view showing howtwo of my kits, each inclosing a plate, may be supported by each otherso that the plates may drain and dry. Fig. et is a detail showing themethod of forming the ledges which support the glass plate out of thematerial which constitutes the kit itself.

Photographers kits as heretofore made have necessarily been veryperishable. They have usually been made of material which is liable tosplit and become warped and which will not withstand the application ofmoisture, much less any contact with the chemicals used in thedeveloping process. They have necessarily been made very thin, becausethey must not be. thicker than the glass plates which they support, forif, so the plates would not be in proper focal plane. Moreover, theattachment of the little ledges or clips which support the glass platesand confine them within these thin kits has necessitated delicateworkmanship in the original construction of them and also adds to theirperishability, because of the necessarily insecure attachment of thesedevices to the body of the kit. My invention consists in making the kitof such material that it may be constructed all of one piece, therebeing no joints at the corners or at any other place, and the materialmust be such also that the ledges which confine the glass plate withinthe kit may all be swaged or pressed out from the single piececonstituting the kit. Thus there is necessity for but one separate part,and that is a little latch or button which swings over one edge of theglass plate to confine it within the kit, and this partowing to thecharacter of the material from which the kit is made, may be ployed therequisite thickness in the kit can be secured without forming any ribs,projecting points, or ledges upon it, which are apt to become distortedduring use, and yet the weight of the kit is so slight that a full setof v plates can be carried with a camera for amateur or other use at aminimum of weight.

The advantages l secure are as follows:

First. The kit is made of one piece only, with the exception of thelittle latch referred to, and that may be attached in a durable manner.Consequently it is what may be called a jointless kit.

Second. The piece cut from the center of the kit may itself be used tomake a kit of the next smaller size, thus economizing material andcheapening the manufacture.

Third. The kit can be immersed in the developer, if necessary, withoutinjury to either it or the chemicals.

Fourth. A slot formed in the end or side of the kit may be used as ameans of supporting two of them in a manner to be described, so that theplates will drain and dry eectively.

Referring tothe drawings, A is the body of the kit, and B a glass platewithin it.

C C C C are four ledges which are swaged 0r pressed out of the materialforming the kit itself.

D is asingle ledge,likewise swaged or pressed from the material formingthe kit; but it projects from the opposite side of the kit from theledges C C, &c.

E is an ordinary button or latch which is fastened by a pivot F at oneend of the kit opposite the ledge D.

G is a slot cut through the body of the kit,

Within which the corner of another kit H (see IOO ledges against Whichthe glass plate rests hold it in the same plane or substantially thesame plane as that occupied by the body of the kit itself, and the metalof which the kit is made 'is of substantially the same thickness as theglass plate, so that the proper focal plane of the latter will bemaintained.

The operation is as-follows: To introduce a place within one of my kits,it is rst introduced in such manner that one of its ends passes betweenthe ledges C and D, whereby it is supported against movement in eitherdirection at that end, and then being properly entered Within theopening through the kit and dropped upon the ledges C at the oppositeend the button E is turned over it, as shown in Figs. l and 2, wherebyit is securely held in position. Y V

As heretofore stated, I prefer to use the metal aluminium from which tomake the kits; but rubber or celluloid may be employed. If so, theledges will obviously be formed at such stagein the manufacture as willenable this to be done, and if metal other than aluminium be employed,then if of a character which would be affected by the chemicals of thesolution or which would itself injure the solutions they should beprotected by lacquer, plating, or otherwise.

I elaimj l. A jointless photographers kit made of a single piece of'material of substantially the thickness of the glass plate it is tosupport, and having ledges against which the plate may rest and besupported within the kit and in the same plane With it, said ledgesbeing pressed from the-material of which the kit is made, for thepurposes set forth.

2. A jointless photographers kit madeof a single piece of material ofsubstantially-the 4o thickness of the glass plat-e it is to support,

ledges against which the plate may rest made integral with the kititself, and a slot through one side of the kit adapted to receive thecorner of another kit, for the purposes set forth.

3. A jointless photographers kit made of a single piece of material of.substantially the thickness of the glass plate Ait is t-o support,ledges against which the plate may rest pressed from the material ofwhich the kit is 5o made, one at least of said ledges being pre-y sentedoppositely to the others, and a button adapted ,to swing over the edgeof the plate, for the purposes set forth.

4. A jointless photographers kit made of a single 'piece of aluminiumof-substantially the same thickness as that of the plate it is tosupport, ledges pressed from the material of which the kit is madeadapted to support the plate, and a button adapted to be swung over 6othe support of the plate pressed from it and presented` in oppositedirections, and a buttonto coact with one or more of the ledges for theconfinement of the plate Within the kit, for the purposes set forth.

Signed at New'Haven, in the countyoi` New 7.a

Haven and State of Connecticut, this 12th day of April, A. D. 1900.

JOSEF MATHEIN.

Witnesses W. .TRUEMAM G. F. FINLAY.

